Method of treating polyester material for rubber reinforcement

Abstract

This invention is a method of treating polyester material for use in reinforcing rubber, the method being characterized by treating the polyester material with a treating liquid containing an epoxy compound and a melamine compound and subsequently heat treating the material at 100°-250° C.

We claim: 
     
       1. An aqueous composition for application to polyester cord comprising a salt of dioctylsulfosuccinate, an epoxy compound and a melamine compound. 
     
     
       2. The composition of claim 1 wherein the salt of dioctylsulfosuccinate is the sodium salt. 
     
     
       3. The composition of claim 1 wherein the epoxy compound is synthesized by the reaction of an epoxy compound containing a halogen with an alcohol or phenol. 
     
     
       4. The composition of claim 3 wherein the epoxy compound containing a halogen is epichlorohydrin. 
     
     
       5. The composition of claim 1 wherein the epoxy compound is selected from the group consisting of compounds having double bond oxidized with peracetic acid, the reaction product of epichlorohydrin with an alcohol, and the reaction product of epichlorohydrin with a phenol. 
     
     
       6. The composition of claim 1 wherein the melamine compound is the initial condensation product of a melamine resin and its intermediate. 
     
     
       7. The composition of claim 6 wherein the melamine resin is selected from the group consisting of melamine-formaldehyde resin, melamine resin acid colloid, and melamine-urea-formaldehyde resin.